feat(solver-bootstrap): step 3 — core-ids-and-diagnostics

tests/unit/core/diagnostic_test.cpp

@@ -0,0 +1,38 @@
+#include <filesystem>
+#include <optional>
+#include <string>
+
+#include <gtest/gtest.h>
+
+#include <fesa/core/diagnostic.hpp>
+
+namespace {
+
+TEST(Diagnostic, PreservesSourceLocation) {
+    const fesa::Diagnostic diagnostic{
+        fesa::DiagnosticStage::syntax,
+        fesa::Severity::error,
+        "ABAQUS_INVALID_NODE",
+        "Node data is incomplete.",
+        fesa::SourceLocation{
+            std::filesystem::path{"models/beam.inp"}, 42, 9}};
+
+    ASSERT_TRUE(diagnostic.source.has_value());
+    EXPECT_EQ(
+        diagnostic.source->file, std::filesystem::path{"models/beam.inp"});
+    EXPECT_EQ(diagnostic.source->line, 42U);
+    EXPECT_EQ(diagnostic.source->column, 9U);
+}
+
+TEST(Diagnostic, AllowsDiagnosticsWithoutSourceLocation) {
+    const fesa::Diagnostic diagnostic{
+        fesa::DiagnosticStage::solver,
+        fesa::Severity::warning,
+        "SOLVER_RESIDUAL",
+        "Residual is above the reporting threshold.",
+        std::nullopt};
+
+    EXPECT_FALSE(diagnostic.source.has_value());
+}
+
+}  // namespace

tests/unit/core/entity_id_test.cpp

@@ -0,0 +1,36 @@
+#include <cstdint>
+#include <stdexcept>
+#include <type_traits>
+
+#include <gtest/gtest.h>
+
+#include <fesa/core/entity_id.hpp>
+
+namespace {
+
+struct NodeTag;
+struct ElementTag;
+
+using NodeId = fesa::EntityId<NodeTag>;
+using ElementId = fesa::EntityId<ElementTag>;
+
+static_assert(std::is_constructible_v<NodeId, std::int64_t>);
+static_assert(!std::is_convertible_v<std::int64_t, NodeId>);
+static_assert(!std::is_convertible_v<NodeId, ElementId>);
+
+TEST(EntityId, PreservesValueAndSupportsTypedOrdering) {
+    constexpr NodeId first{7};
+    constexpr NodeId second{11};
+
+    static_assert(first.value() == 7);
+    static_assert(first < second);
+
+    EXPECT_EQ(first.value(), 7);
+    EXPECT_LT(first, second);
+}
+
+TEST(EntityId, RejectsNegativeValues) {
+    EXPECT_THROW((NodeId{-1}), std::invalid_argument);
+}
+
+}  // namespace

tests/unit/core/status_test.cpp

@@ -0,0 +1,35 @@
+#include <filesystem>
+#include <vector>
+
+#include <gtest/gtest.h>
+
+#include <fesa/core/status.hpp>
+
+namespace {
+
+TEST(CoreStatus, PreservesFailureDiagnostics) {
+    const fesa::Status status{
+        false,
+        {fesa::Diagnostic{
+            fesa::DiagnosticStage::model,
+            fesa::Severity::error,
+            "MODEL_NONFINITE_VECTOR",
+            "A vector component is not finite.",
+            fesa::SourceLocation{
+                std::filesystem::path{"models/invalid.inp"}, 8, 3}}}};
+
+    EXPECT_FALSE(status.succeeded);
+    ASSERT_EQ(status.diagnostics.size(), 1U);
+    EXPECT_EQ(status.diagnostics.front().code, "MODEL_NONFINITE_VECTOR");
+    ASSERT_TRUE(status.diagnostics.front().source.has_value());
+    EXPECT_EQ(status.diagnostics.front().source->line, 8U);
+}
+
+TEST(CoreStatus, RepresentsSuccessWithoutDiagnostics) {
+    const fesa::Status status{true, {}};
+
+    EXPECT_TRUE(status.succeeded);
+    EXPECT_TRUE(status.diagnostics.empty());
+}
+
+}  // namespace

tests/unit/core/vec3_test.cpp

@@ -0,0 +1,20 @@
+#include <limits>
+
+#include <gtest/gtest.h>
+
+#include <fesa/core/vec3.hpp>
+
+namespace {
+
+TEST(CoreVec3, ReportsOnlyFiniteVectorsAsFinite) {
+    EXPECT_TRUE(fesa::is_finite(fesa::Vec3{1.0, -2.0, 0.0}));
+
+    const double infinity = std::numeric_limits<double>::infinity();
+    const double nan = std::numeric_limits<double>::quiet_NaN();
+
+    EXPECT_FALSE(fesa::is_finite(fesa::Vec3{infinity, 0.0, 0.0}));
+    EXPECT_FALSE(fesa::is_finite(fesa::Vec3{0.0, -infinity, 0.0}));
+    EXPECT_FALSE(fesa::is_finite(fesa::Vec3{0.0, 0.0, nan}));
+}
+
+}  // namespace